Speaker unit



FIG. 1 is a perspective view of the speaker unit;

FIG. 2 is a rear view of the speaker unit;

FIG. 3 is a front view of the speaker unit;

FIG. 4 is a left side view of the speaker unit;

FIG. 5 is a right side view of the speaker unit;

FIG. 6 is a bottom view of the speaker unit; and,

FIG. 7 is a top view of the speaker unit. 

CLAIM The ornamental design for a speaker unit, as shown and described. 